Posting this for Neville, re his cowlings.
Sent from my iPad
Begin forwarded message:
> From: Neville Eyre <neveyre@aol.com>
> Date: 16 March 2016 at 23:45:54 GMT
> To: alan.twigg775@gmail.com
> Subject: Fwd: Europa-List: top cowl carb air inlet
>
> Hi Alan, I tried to post this on the Forum, didn't get through, can you po
st it for me ?
> Cheers,
> Nev
>
>
> -----Original Message-----
> From: Neville Eyre <neveyre@aol.com>
> To: europa-list <europa-list@matronics.com>
> Sent: Wed, Mar 16, 2016 8:13 pm
> Subject: Re: Europa-List: top cowl carb air inlet
>
> Hi Rowland,
> Glad to hear you are on with it, smart thing would have been to call or em
ail me directly with your question ?
> All pretty straight forward, no need to do any glassing / cutting of the c
owls, I designed and manufactured them so you don't have to ! If it takes yo
u more than a morning to fit them you are doing something wrong !
> Air to the carbs is taken from under the cowl, no chance of water ingress v
ia a NACA scoop when parked.. Prefered filters are the conical K&N's direct o
n the carbs, but the Europa airbox set up will work. The airbox / NACA set u
p was needed with the standard XS cowls as it gets hotter than hell in there
with no through airflow. Air temps inside my upper cowl taken at shutdown a
fter a 2 hour flight were below ambient, nothing above the baffles got hot e
nough to darken the 40 C bar on the temp' test strips.
> The baffles will direct cold air all the way to the rear of the cowl, and w
ith the top of the tunnel gap blocked off with a baffle, little heat build u
p there after shutdown. Baffles also prevent the exhaust headers cooking the
fuel in the carbs.
> I'm sure you had copies of the baffle templates [ baffles made from soft a
lloy] if not I can send you a set. With this installation, you can run on th
e ground at 2,000 rpm all day, and do the 5 minute WOT run for the LaaLaaLan
d pre 1st flight test without burning the cowls or chucking the coolant over
board [BTW use 50/50 antifreeze / water, not the ''other stuff'' ]
> As you only had the cowls [ not my complete kit] just follow the Europa FW
F Manual as far as mounting and plumbing the engine, in the same position as
the XS Europa kit.
> Cheers,
> Nev
>
>
> -----Original Message-----
> From: Rowland Carson <rowlandcarson@gmail.com>
> To: Europa e-mail list list <europa-list@matronics.com>
> Sent: Tue, Mar 15, 2016 8:22 pm
> Subject: Europa-List: top cowl carb air inlet
>
>
>
> I=99ve bought Neville Eyre=99s cowl set and I am wondering how
to get the air into the cowling to the plenum chamber for the carbs.
>
> The Europa manual describes making a NACA duct on the top cowl to connect t
o the plenum chamber, at a marked position. If I understand the manual corre
ctly, it appears that a buck or splash moulding is supplied with the factory
cowl set. It is pushed through the cowl from the outside and the duct is la
id up inside the cowl against the splash moulding.
>
> Neville has not supplied anything to make the NACA duct for the plenum cha
mber. Obviously I can work out the position on the cowl from careful measure
ment of the plenum relative to the firewall, but I don=99t have any in
formation or pattern for the shape and size of the NACA duct.
>
> Does anyone have one of these splash mouldings from the factory that I cou
ld borrow, please? I don=99t need it right now, but want to make sure I
have some way of dealing with this problem when I come to it.
>
> Or, if I=99m not understanding how the NACA duct is made, can someon
e please explain it to me!
>
> in friendship
>
> Rowland
>
> | Rowland Carson ... that's Rowland with a 'w' ...
> | <rowlandcarson@gmail.com> http://www.rowlandcarson.org.uk
> | Skype, Twitter: rowland_carson Facebook: Rowland Carson
> | pictures: http://picasaweb.google.com/rowlandcarson
>
>
>
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